Do the Pre-Main Sequence δ Scuti Stars Really Exist?
نویسندگان
چکیده
منابع مشابه
The effect of diffusion on pulsations of stars on the upper main sequence δ Scuti and metallic A stars
Recent dramatic improvements in the modeling of abundance evolution due to diffusion in A stars have been achieved with the help of monochromatic opacity tables from the OPAL group. An important result in the context of stellar pulsations is the substantial helium abundance shown to be left over in the driving region of δ Scuti-type pulsations in chemically peculiar Am stars. An accurate opacit...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 2002
ISSN: 0252-9211
DOI: 10.1017/s0252921100016468